Operating chair or table.



' B.. A. CLAYTON.

OPERATING CHAIR 0R TABLE.

APPLIOATION FILED AUG. 5, 1912.

Patented Dec. 10, 1912.

2 SHEETS-SHEET 1.

B. A. GLAY TON,

I OPERATING ZYIEAIR 0R TABLE,

APPLICATION FILED AUG, 5, 1912.

Patented Dec. 10, 1912'.

2 SHEETS-SHEET 2.

I I I v Suva/W506 $672275 C/ yZ W' I 61 fliloweqi' 'To all whom it may dancerm UNITED STATES PATENT onrion BERT A. CLAYTON, OF DAVENPORT, IOWA, ASS-IGNOR OF ONE-HALF TO BARTLETT J PALMER, OF DAVENPORT, IOWA.

OPERATING CHAIR R TABLE.

Specification of Letters Iatent.

Patented Dec. 10, 1912.

Application filed August 5,1912 Seri'aINo. 713,330.

C AYTON, at

Be it known that I,"BERT A. citizen of the United States, residing Davenport, in the countyof Scott and Stateof Iowa, have invented'certain new and useful Improvements in Operating Chairs or Tables, of which the following is a spec'i- This invention relates to an improvement in operating chairs or tables, designed-particularly for use by chiropractors, osteo-- t on, adapted to overlie the top paths, masseurs and the like. I v The object-of the present invention is the provision of a chair or table ofthis charao ter which is so constructed that it can be adjusted for patients of various sizes, and can also be readily and easily adjusted to bring the patient in any position desired by the practitioner.

'Other objects ofthe' invention will be apparent from the detailed-description; hereinafter when read in connection with the accompanyin'g drawings forming a part hereof, wherein a' convenient embodiment of the invention -'is illustrated, and wherein like characters of references refer to similar parts in theseveral views.

1n the drawingsfFigur e 1 .is'a side elevation of a table or chair constructed in accordance with the present invention, the

' table being shown in' its lowermost position;

Fig, 2 is a longitudinal section of the device in the sameposition; Fig. 3 is a top plan view of the chair or table in its loweredposition; Fig. 4 is a side elevation, parts being shown in section, ofthe chair or table in its elevated position; and Fig. 5 is a cross section on line 55 of Fig. 1. I

Referring now more particularly to the drawings, A designates the supporting member ofthe chair which comprises a fiat supporting base which isadapted to be secured to the floor or other suitable support, and upon which is supported a cylinder A. B designates a piston which is adapted to move within the cylinder A.

Communicating. with the lower portion .of the cylinder A is a pipe through which air or other fluid under pressure is adapted to be admitted to the lower portion of the cylinder A when it is desired to elevate the piston B therein. The pipe C also serves as an exhaust pipe to permit the escape of the air or other fluid from the cylinder A when it is desired to effect the loweranother position, is adapted somewhat below the foot of the piston therein. To control the admisslonof airto and from the cylinder, a three-way valve is interposed in the pipe C, which valve, when inone position, is adapted to place the cylinder A in communication with asuitable source of compressed air orother fluid under pressure, and when in to connect the cylinder A with a suitable exhaust pipe.

D designates the frame of the table or chair which is, when in its horizontal posiof the cylinder A, said frame being pivotally connected 7 adjacent the foot thereof to one side of the upper portlo-n of the cylinder A, so that the frame can, when desired, be turned to substantially a vertical position.

Pivot-ally secured to the underside of the frame D adjaeent its connection with the cylinder A is a link-D, thelowerend of which is pivot-ally conneotedto the upper portionof' the piston B. From th's constructlon, 1t Wlll be seen that by reg lating the fluid pressure in the cylinder A, the

frame D may be maintained at any desired angle. In the embodiment. of the invention .illustratedin the drawings, the frame D'is formed of connected side bars d d which are conveniently formed of angle iron, the

ends of said sidebars being upturned to provide supports for a foot board E which is rigidly secured thereto in any .suitable manner. The. head and foot portions of the frame D are substantially parallel. theside j v bars (Z (5 being inclined downwardly intermediate said head and foot port-ions, asv at,

&5, so that the head portion is positioned portion when the frameis in its horizontal position.

Slidably mounted upon the foot portion' of the frame D so that it maybe adjusted longitudinally thereof, is a'support- F to which is secured an angularly adjustable plate Gr which is adapted to overlie the foot portion of the frame D and to constitute a support for the legs of the patient. In the embodiment of the invention illustrated, the sup. port F comprises side members f f which are grooved to slidablv engage the laterally extending flanges of the angle bars (I (Z of the; frame D, which bars are connected by .a

suitable cross piece. The plate G ishingedly connected to the ends of the side members F- F nearest the foot board. E and said plate is normally held in its lowermost posi- '59 I I t Slidably mounted upon the head portion tion against'the side members f f of the support F by means of coil springs f. which connect the sides of said plate with the members f. I

Any su table means is employed for supporting the free end of the plate G to main-- tain the same in various positions to angular adjustment. In the embodiment of theinvention illustrated, the means employed" for this purpose comprises a rod f which is slidably mounted in a socket securedt-o the exterior of thecylinder A, the socket being the plate F and elevate the same.

so positioned that when the rod is elevated therein, the upper portion thereof will contact with the underside of the free end of Mauifestly by adjusting the rod f in its socket,

the plate F may be set and maintained at any desired angle with reference to. the

frame I). In the embodiment of the invention illustrated, I have shown the rod as pro-.

' vided with a plurality of depressions therein which are adapted to be engaged by a set 1 screw F which is threaded in the socket in which the rod is mounted. With this construction, the'rod f is first adjusted to thedesired height so that when the chair s lowered to its horizontal position, the plate will be caused to assume the desired degree of angular adjustment;

While I'. have illustrated a vertically ad-' justable rod secured to ,the cylinder A, as the means for holdingthe plate in various positions of angular adjustment, it will be.

understood that this angular adjustment of the plate F may be secured in various other ways without departing from the sp rit and scope of the present invention.

Anysuitable means may 'be employed for locking the-support F in anydesired position of longitudinal adjustment on'the side bars cl d on the frame D. In the embodiment. of the invention illustrated, I have :shown one of the side members f of the 5support F as provided with a pivoted cam lever F for this purpose, said lever being j-.f h da pted, in one;position,'to permit the support'Fto slide freely on the side bars d d and in another position to hold said'support tightlycla'mped to said side bars.

of the frame D so as to be capable of longi-.

' tudinal adjustment thereon, is a support H, l upon which is mounted an angularly ad ust-' able plate I which serves to support the breast of the patient. The support 'H comprises, in the form of the invention illustrated in the drawings, side members it h which are grooved so asto slidably engage the'side' bars d d of the frame and which are connected by a' suitable cross piece h, said cross piece-being provided intermediate the.

ends thereof with an inwardly extending notch h in one edge thereof-for a purposeto' be hereinafter more; particularly set; forth.

Extending upwardly from the side pieces 72 72v are supports 7: to the upper portions of which the plate I'is pivotally connected adjacentone end thereof.

. Any suitable means may be employed for locking the plate I in various positions of angular adjustment. In the embodiment of connected to the underside of the plate I and depends therefrom, said rod being adapted to work within the notch 71 formed in one edge of'the'cross piece h connecting the sidemembers h h of the support H, and is provided .with a plurality of notches i in one edge thereof, any one of which may bemoved into'engagement with the cross 'piece it. v A spring 71 connects the plate I with the rod 2' depending therefrom and serves to normally hold said rod in a position tocause the engagement of one of the notches i.

, der A and the piston 13 is elevated therein until the frame D has been moved to its Vertical position. The patient then steps upon the foot piece E at the foot of the frame facing the plate I, and the table is loweredto the desired extent by allowing the.air or fluid to escape from the, cylinder A I While I have illustrated in the accompanying drawings, a convenient embodiment of the invention, it will be understood that lar form and construction therein shown without departing from the spirit and scope of thQ'lIIVQ-IltlOIl as defined in the appended claims; I claim 1. In a device of the character described,

a supp'ortingbase, an elongated frame pivotally connected to said base, said frame belng provided with a foot board'projecting.

laterally from one end thereof, and with angularly adjustable body supporting members 'ositioned at the ends thereof and space from each other.

the inventionillustrated, a rod i is pivotally many changes may be made to the particu- 2. In a device of the character described,

'a supporting base, a frame pivotally hon-- nected thereto, a" body supporting member pivoted to said frame, and an adjustable member" carried vby said supporting base and adapted to gage" said :body supporting member when the frame is moved to its lower, position, and shift 1 thelsame 'rela ve -y e aid f ame; l

3. In a device of the character described, a supporting base, an elongated frame pivotally connected thereto, and adapted to overlie said supporting base when in its lower position, a body supporting member pivoted to said frame, a yieldable connec tion between said body supporting member and the frame for normally holding the body supporting member flat against the frame, and means carried by the supporting base and adapted to engage said body supporting member when the frame is lowered ghereon to shift the same relatively to the ase.

4. In a device of the character described, a supporting base, an elongated frame piv otally connected thereto and adapted to overlie said supporting base when the frame is in its lower position, a carriage supported by said frame and adjustable longitudinally thereof, a body supporting member pivotally connected to said carriage, and an adjustable member carried by said supporting base and adapted to engage said body 7 supporting member when the framesis lowered to shift the same relatively to said frame.

5. In a device of the character described, a supporting base, a carriage mounted on said supporting base and adjustable longitudinally thereof, a body supporting member pivotally connected to said carriage, yield-able means connecting said body supporting member and said carriage, and an adjustable member carried by said support- 7 .ing base and positioned to engage said body supporting member when the frameis in its lower position.

v6. In a device of the character described,

aframe, a carriageslidably mounted on said frame and adjustable longitudinally thereof, a body supporting member pivotally connected to said carriagefia bar pivotally connected to said body supporting member and depending therefrom, said bar being provided with a plurality of notches with a portion of said carriage, and aspring for normally holding said bar so that one of the notches thereof will engage said portion of the carriage.

. in one edge thereof adapted vfor engagement" '7. In a device of the character described,

a supporting base, an elongated frame, provided with a foot, board pro ecting laterally therefrom, means for pivot'ally connecting said frame to said supporting base ad- BERT. A. CLAYTON, Witnesses: i

W, G. SANDFORD, G. E. LAU. 

